[bsp][stm32][stm32l475-atk-pandora]Modify README.md
[bsp][stm32][stm32l475-atk-pandora]Modify README.md

Signed-off-by: Willian Chan <d9fc93aacd1a96bae112403d9c69dfe239830c45@rt-thread.com>

gbcwbz/rt-thread,RT-Thread/rt-thread,gbcwbz/rt-thread,weiyuliang/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,RT-Thread/rt-thread,FlyLu/rt-thread,weiyuliang/rt-thread,FlyLu/rt-thread,gbcwbz/rt-thread,hezlog/rt-thread,weiyuliang/rt-thread,weiyuliang/rt-thread,armink/rt-thread,RT-Thread/rt-thread,RT-Thread/rt-thread,FlyLu/rt-thread,weety/rt-thread,RT-Thread/rt-thread,FlyLu/rt-thread,weety/rt-thread,weety/rt-thread,gbcwbz/rt-thread,ArdaFu/rt-thread,nongxiaoming/rt-thread,armink/rt-thread,nongxiaoming/rt-thread,gbcwbz/rt-thread,ArdaFu/rt-thread,weety/rt-thread,ArdaFu/rt-thread,ArdaFu/rt-thread,geniusgogo/rt-thread,armink/rt-thread,ArdaFu/rt-thread,geniusgogo/rt-thread,ArdaFu/rt-thread,armink/rt-thread,geniusgogo/rt-thread,FlyLu/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,weety/rt-thread,RT-Thread/rt-thread,hezlog/rt-thread,gbcwbz/rt-thread,weiyuliang/rt-thread,FlyLu/rt-thread,armink/rt-thread,nongxiaoming/rt-thread,geniusgogo/rt-thread,armink/rt-thread,weiyuliang/rt-thread,armink/rt-thread,weety/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,hezlog/rt-thread,weety/rt-thread,weiyuliang/rt-thread,ArdaFu/rt-thread,nongxiaoming/rt-thread,hezlog/rt-thread,geniusgogo/rt-thread,RT-Thread/rt-thread,geniusgogo/rt-thread,geniusgogo/rt-thread,FlyLu/rt-thread,gbcwbz/rt-thread